Finding the Fourth Proportional to 1,609,973.84, 2,221,716.92 and 921,622.88
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Solution
The fourth proportional to 1,609,973.84, 2,221,716.92 and 921,622.88 is: 1,271,812.68
Step by Step Solution
- Step 1: Write the proportion equation
1,609,973.84 : 2,221,716.92 = 921,622.88 : x - Step 2: Convert to fraction form
1,609,973.84/2,221,716.92 = 921,622.88/x - Step 3: Cross multiply
1,609,973.84x = 2,221,716.92 × 921,622.88 - Step 4: Simplify right side
1,609,973.84x = 2,047,585,146,355.13 - Step 5: Solve for x
x = 2,047,585,146,355.13/1,609,973.84 - Step 6: Final answer
x = 1,271,812.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.